APA (7th ed.) Citation

Leahey, T. H. (1994). A history of modern psychology (2nd ed.). Prentice-Hall International.

Chicago Style (17th ed.) Citation

Leahey, Thomas Hardy. A History of Modern Psychology. 2nd ed. London: Prentice-Hall International, 1994.

MLA (9th ed.) Citation

Leahey, Thomas Hardy. A History of Modern Psychology. 2nd ed. Prentice-Hall International, 1994.